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gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12encoder.cpp
Seungha Yang 2c203e0d40 d3d12encoder: Handle external fence explicitly 
Waits for external fence if any

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6749>
2024-04-28 12:49:07 +00:00

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/* GStreamer
* Copyright (C) 2024 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d12encoder.h"
#include "gstd3d12encoderbufferpool.h"
#include <gst/base/gstqueuearray.h>
#include <directx/d3dx12.h>
#include <wrl.h>
#include <memory>
#include <vector>
#include <queue>
#include <mutex>
#include <condition_variable>
#include <atomic>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
/* *INDENT-ON* */
GST_DEBUG_CATEGORY_STATIC (gst_d3d12_encoder_debug);
#define GST_CAT_DEFAULT gst_d3d12_encoder_debug
enum
{
PROP_0,
PROP_ADAPTER_LUID,
PROP_DEVICE_ID,
PROP_VENDOR_ID,
};
#define ASYNC_DEPTH 4
struct EncoderOutputData
{
GstVideoCodecFrame *frame = nullptr;
GstD3D12EncoderBuffer *buffer = nullptr;
guint64 fence_val = 0;
};
/* *INDENT-OFF* */
struct EncoderSessionData
{
EncoderSessionData ()
{
output_queue = gst_queue_array_new_for_struct (sizeof (EncoderOutputData),
16);
}
~EncoderSessionData ()
{
if (upload_pool)
gst_buffer_pool_set_active (upload_pool, FALSE);
gst_clear_object (&upload_pool);
gst_clear_object (&encoder_pool);
gst_queue_array_free (output_queue);
}
ComPtr<ID3D12VideoEncoder> encoder;
ComPtr<ID3D12VideoEncoderHeap> heap;
std::mutex queue_lock;
std::condition_variable queue_cond;
GstQueueArray *output_queue;
GstD3D12EncoderBufferPool *encoder_pool = nullptr;
GstBufferPool *upload_pool = nullptr;
};
struct EncoderCmdData
{
EncoderCmdData ()
{
event_handle = CreateEventEx (nullptr, nullptr, 0, EVENT_ALL_ACCESS);
}
~EncoderCmdData ()
{
if (queue)
gst_d3d12_command_queue_fence_wait (queue, G_MAXUINT64, event_handle);
CloseHandle (event_handle);
gst_clear_object (&ca_pool);
gst_clear_object (&queue);
}
ComPtr<ID3D12VideoDevice3> video_device;
ComPtr<ID3D12VideoEncodeCommandList2> cl;
GstD3D12CommandQueue *queue = nullptr;
GstD3D12CommandAllocatorPool *ca_pool = nullptr;
HANDLE event_handle;
guint64 fence_val = 0;
};
struct GstD3D12EncoderPrivate
{
GstD3D12EncoderPrivate ()
{
fence_data_pool = gst_d3d12_fence_data_pool_new ();
}
~GstD3D12EncoderPrivate ()
{
gst_clear_object (&fence_data_pool);
g_clear_pointer (&input_state, gst_video_codec_state_unref);
}
GstD3D12EncoderConfig config = { };
D3D12_VIDEO_ENCODER_DESC encoder_desc = { };
D3D12_VIDEO_ENCODER_HEAP_DESC heap_desc = { };
D3D12_FEATURE_DATA_VIDEO_ENCODER_RESOURCE_REQUIREMENTS resource_req = { };
GstVideoCodecState *input_state = nullptr;
std::vector<D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA> subregions;
std::unique_ptr<EncoderCmdData> cmd;
std::unique_ptr<EncoderSessionData> session;
GThread *output_thread = nullptr;
GstD3D12FenceDataPool *fence_data_pool;
std::atomic<GstFlowReturn> last_flow = { GST_FLOW_OK };
std::atomic<bool> flushing = { false };
bool array_of_textures = false;
D3D12_FEATURE_DATA_FORMAT_INFO format_info = { };
};
/* *INDENT-ON* */
static void gst_d3d12_encoder_finalize (GObject * object);
static void gst_d3d12_encoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_d3d12_encoder_set_context (GstElement * element,
GstContext * context);
static gboolean gst_d3d12_encoder_open (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_start (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_stop (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_close (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_sink_query (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_d3d12_encoder_src_query (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_d3d12_encoder_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_d3d12_encoder_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state);
static GstFlowReturn gst_d3d12_encoder_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame);
static GstFlowReturn gst_d3d12_encoder_finish (GstVideoEncoder * encoder);
static gboolean gst_d3d12_encoder_flush (GstVideoEncoder * encoder);
#define gst_d3d12_encoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstD3D12Encoder,
gst_d3d12_encoder, GST_TYPE_VIDEO_ENCODER,
GST_DEBUG_CATEGORY_INIT (gst_d3d12_encoder_debug,
"d3d12encoder", 0, "d3d12encoder"));
static void
gst_d3d12_encoder_class_init (GstD3D12EncoderClass * klass)
{
auto object_class = G_OBJECT_CLASS (klass);
auto element_class = GST_ELEMENT_CLASS (klass);
auto encoder_class = GST_VIDEO_ENCODER_CLASS (klass);
auto read_only_params = (GParamFlags) (GST_PARAM_DOC_SHOW_DEFAULT |
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
object_class->finalize = gst_d3d12_encoder_finalize;
object_class->get_property = gst_d3d12_encoder_get_property;
g_object_class_install_property (object_class, PROP_ADAPTER_LUID,
g_param_spec_int64 ("adapter-luid", "Adapter LUID",
"DXGI Adapter LUID (Locally Unique Identifier) of created device",
G_MININT64, G_MAXINT64, 0, read_only_params));
g_object_class_install_property (object_class, PROP_DEVICE_ID,
g_param_spec_uint ("device-id", "Device Id",
"DXGI Device ID", 0, G_MAXUINT32, 0, read_only_params));
g_object_class_install_property (object_class, PROP_VENDOR_ID,
g_param_spec_uint ("vendor-id", "Vendor Id",
"DXGI Vendor ID", 0, G_MAXUINT32, 0, read_only_params));
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_d3d12_encoder_set_context);
encoder_class->open = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_open);
encoder_class->start = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_start);
encoder_class->stop = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_stop);
encoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_close);
encoder_class->sink_query = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_sink_query);
encoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_src_query);
encoder_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_d3d12_encoder_propose_allocation);
encoder_class->set_format = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_set_format);
encoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_d3d12_encoder_handle_frame);
encoder_class->finish = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_finish);
encoder_class->flush = GST_DEBUG_FUNCPTR (gst_d3d12_encoder_flush);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER, (GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_RATE_CONTROL,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_RATE_CONTROL_SUPPORT,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_SUBREGION_LAYOUT,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_SUBREGION_LAYOUT_SUPPORT,
(GstPluginAPIFlags) 0);
gst_type_mark_as_plugin_api (GST_TYPE_D3D12_ENCODER_SEI_INSERT_MODE,
(GstPluginAPIFlags) 0);
}
static void
gst_d3d12_encoder_init (GstD3D12Encoder * self)
{
self->priv = new GstD3D12EncoderPrivate ();
}
static void
gst_d3d12_encoder_finalize (GObject * object)
{
auto self = GST_D3D12_ENCODER (object);
delete self->priv;
gst_clear_object (&self->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d12_encoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
auto self = GST_D3D12_ENCODER (object);
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
switch (prop_id) {
case PROP_ADAPTER_LUID:
g_value_set_int64 (value, klass->adapter_luid);
break;
case PROP_DEVICE_ID:
g_value_set_uint (value, klass->device_id);
break;
case PROP_VENDOR_ID:
g_value_set_uint (value, klass->vendor_id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_d3d12_encoder_set_context (GstElement * element, GstContext * context)
{
auto self = GST_D3D12_ENCODER (element);
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
gst_d3d12_handle_set_context_for_adapter_luid (element, context,
klass->adapter_luid, &self->device);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_d3d12_encoder_open (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
HRESULT hr;
ComPtr < ID3D12VideoDevice3 > video_device;
if (!gst_d3d12_ensure_element_data_for_adapter_luid (GST_ELEMENT_CAST (self),
klass->adapter_luid, &self->device)) {
GST_ERROR_OBJECT (self, "Couldn't get device");
return FALSE;
}
auto device = gst_d3d12_device_get_device_handle (self->device);
hr = device->QueryInterface (IID_PPV_ARGS (&video_device));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "ID3D12VideoDevice3 interface is unavailable");
return FALSE;
}
D3D12_COMMAND_QUEUE_DESC queue_desc = { };
queue_desc.Type = D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE;
auto cmd = std::make_unique < EncoderCmdData > ();
cmd->queue = gst_d3d12_command_queue_new (device, &queue_desc,
D3D12_FENCE_FLAG_NONE, ASYNC_DEPTH);
if (!cmd->queue) {
GST_ERROR_OBJECT (self, "Couldn't create command queue");
return FALSE;
}
cmd->ca_pool = gst_d3d12_command_allocator_pool_new (device,
D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE);
cmd->video_device = video_device;
priv->cmd = std::move (cmd);
return TRUE;
}
static gboolean
gst_d3d12_encoder_start (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Start");
if (!priv->cmd) {
GST_ERROR_OBJECT (self, "Command data is not configured");
return FALSE;
}
priv->last_flow = GST_FLOW_OK;
return TRUE;
}
static void
gst_d3d12_encoder_drain (GstD3D12Encoder * self, gboolean locked)
{
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Draining");
/* Unlock stream-lock so that output thread can push pending data
* from output thread */
if (locked)
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
if (priv->cmd) {
GST_DEBUG_OBJECT (self, "Waiting for command finish %" G_GUINT64_FORMAT,
priv->cmd->fence_val);
gst_d3d12_command_queue_fence_wait (priv->cmd->queue, priv->cmd->fence_val,
priv->cmd->event_handle);
}
if (priv->session && priv->output_thread) {
GST_DEBUG_OBJECT (self, "Sending empty task");
auto empty_data = EncoderOutputData ();
std::lock_guard < std::mutex > lk (priv->session->queue_lock);
gst_queue_array_push_tail_struct (priv->session->output_queue, &empty_data);
priv->session->queue_cond.notify_one ();
}
g_clear_pointer (&priv->output_thread, g_thread_join);
if (locked)
GST_VIDEO_ENCODER_STREAM_LOCK (self);
GST_DEBUG_OBJECT (self, "Drained");
}
static gboolean
gst_d3d12_encoder_stop (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Stop");
gst_d3d12_encoder_drain (self, FALSE);
priv->session = nullptr;
return TRUE;
}
static gboolean
gst_d3d12_encoder_close (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Close");
gst_d3d12_encoder_drain (self, FALSE);
priv->session = nullptr;
priv->cmd = nullptr;
gst_clear_object (&self->device);
return TRUE;
}
static gboolean
gst_d3d12_encoder_handle_query (GstD3D12Encoder * self, GstQuery * query)
{
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
return gst_d3d12_handle_context_query (GST_ELEMENT (self),
query, self->device);
default:
break;
}
return FALSE;
}
static gboolean
gst_d3d12_encoder_sink_query (GstVideoEncoder * encoder, GstQuery * query)
{
auto self = GST_D3D12_ENCODER (encoder);
if (gst_d3d12_encoder_handle_query (self, query))
return TRUE;
return GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (encoder, query);
}
static gboolean
gst_d3d12_encoder_src_query (GstVideoEncoder * encoder, GstQuery * query)
{
auto self = GST_D3D12_ENCODER (encoder);
if (gst_d3d12_encoder_handle_query (self, query))
return TRUE;
return GST_VIDEO_ENCODER_CLASS (parent_class)->src_query (encoder, query);
}
static GstBufferPool *
gst_d3d12_encoder_create_upload_pool (GstD3D12Encoder * self)
{
auto priv = self->priv;
GstVideoInfo info;
gst_video_info_set_format (&info, GST_VIDEO_FORMAT_NV12,
priv->config.resolution.Width, priv->config.resolution.Height);
auto caps = gst_video_info_to_caps (&info);
auto pool = gst_d3d12_buffer_pool_new (self->device);
auto config = gst_buffer_pool_get_config (pool);
auto params = gst_d3d12_allocation_params_new (self->device, &info,
GST_D3D12_ALLOCATION_FLAG_DEFAULT,
D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS |
D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET, D3D12_HEAP_FLAG_NONE);
gst_buffer_pool_config_set_d3d12_allocation_params (config, params);
gst_d3d12_allocation_params_free (params);
gst_buffer_pool_config_set_params (config, caps, info.size, 0, 0);
gst_caps_unref (caps);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Set config failed");
gst_object_unref (pool);
return nullptr;
}
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR_OBJECT (self, "Set active failed");
gst_object_unref (pool);
return nullptr;
}
return pool;
}
static gboolean
gst_d3d12_encoder_propose_allocation (GstVideoEncoder * encoder,
GstQuery * query)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GstCaps *caps;
GstVideoInfo info;
gst_query_parse_allocation (query, &caps, nullptr);
if (!caps) {
GST_WARNING_OBJECT (self, "null caps in query");
return FALSE;
}
if (!gst_video_info_from_caps (&info, caps)) {
GST_WARNING_OBJECT (self, "Failed to convert caps into info");
return FALSE;
}
auto features = gst_caps_get_features (caps, 0);
gboolean is_d3d12 = FALSE;
GstBufferPool *pool;
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D12_MEMORY)) {
GST_DEBUG_OBJECT (self, "Upstream supports d3d12 memory");
pool = gst_d3d12_buffer_pool_new (self->device);
is_d3d12 = TRUE;
} else {
pool = gst_video_buffer_pool_new ();
}
if (!pool) {
GST_ERROR_OBJECT (self, "Couldn't create buffer pool");
return FALSE;
}
auto config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
if (is_d3d12) {
GstVideoAlignment align;
gst_video_alignment_reset (&align);
align.padding_right = priv->config.resolution.Width - info.width;
align.padding_bottom = priv->config.resolution.Height - info.height;
auto params = gst_d3d12_allocation_params_new (self->device, &info,
GST_D3D12_ALLOCATION_FLAG_DEFAULT,
D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS |
D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET, D3D12_HEAP_FLAG_NONE);
gst_d3d12_allocation_params_alignment (params, &align);
gst_buffer_pool_config_set_d3d12_allocation_params (config, params);
gst_d3d12_allocation_params_free (params);
} else {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
}
guint size = GST_VIDEO_INFO_SIZE (&info);
gst_buffer_pool_config_set_params (config, caps, size, ASYNC_DEPTH, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (self, "Failed to set pool config");
gst_object_unref (pool);
return FALSE;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, nullptr, &size, nullptr, nullptr);
gst_structure_free (config);
gst_query_add_allocation_pool (query, pool, size, ASYNC_DEPTH, 0);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, nullptr);
gst_object_unref (pool);
return TRUE;
}
static gboolean
gst_d3d12_encoder_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
gst_d3d12_encoder_drain (self, TRUE);
priv->session = nullptr;
g_clear_pointer (&priv->input_state, gst_video_codec_state_unref);
priv->input_state = gst_video_codec_state_ref (state);
priv->last_flow = GST_FLOW_OK;
priv->config = { };
GST_DEBUG_OBJECT (self, "Set format with caps %" GST_PTR_FORMAT, state->caps);
if (!klass->new_sequence (self, priv->cmd->video_device.Get (), state,
&priv->config)) {
GST_ERROR_OBJECT (self, "Couldn't accept new sequence");
return FALSE;
}
g_assert (priv->config.max_subregions > 0);
auto & config = priv->config;
auto flags = config.support_flags;
GST_DEBUG_OBJECT (self, "Encoder caps, "
"rate-control-reconfig: %d, resolution-reconfig: %d, "
"vbv-size: %d, frame-analysis: %d, texture-arrays: %d, delta-qp: %d, "
"subregion-reconfig: %d, qp-range: %d, initial-qp: %d, "
"max-frame-size: %d, gop-reconfigure: %d, me-precision-limit: %d",
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RESOLUTION_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_VBV_SIZE_CONFIG_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_FRAME_ANALYSIS_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_DELTA_QP_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, SUBREGION_LAYOUT_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_ADJUSTABLE_QP_RANGE_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_INITIAL_QP_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, RATE_CONTROL_MAX_FRAME_SIZE_AVAILABLE),
CHECK_SUPPORT_FLAG (flags, SEQUENCE_GOP_RECONFIGURATION_AVAILABLE),
CHECK_SUPPORT_FLAG (flags,
MOTION_ESTIMATION_PRECISION_MODE_LIMIT_AVAILABLE));
auto video_device = priv->cmd->video_device;
auto & resource_req = priv->resource_req;
resource_req.Codec = klass->codec;
resource_req.Profile = config.profile_desc;
resource_req.InputFormat = DXGI_FORMAT_NV12;
resource_req.PictureTargetResolution = config.resolution;
auto hr = video_device->CheckFeatureSupport
(D3D12_FEATURE_VIDEO_ENCODER_RESOURCE_REQUIREMENTS,
&resource_req, sizeof (resource_req));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't query resource requirement");
return FALSE;
}
if (CHECK_SUPPORT_FLAG (flags, RECONSTRUCTED_FRAMES_REQUIRE_TEXTURE_ARRAYS)) {
GST_DEBUG_OBJECT (self, "Device requires texture array");
priv->array_of_textures = false;
} else {
GST_DEBUG_OBJECT (self, "Device supports array of textures");
priv->array_of_textures = true;
}
auto device = gst_d3d12_device_get_device_handle (self->device);
priv->format_info.Format = DXGI_FORMAT_NV12;
hr = device->CheckFeatureSupport (D3D12_FEATURE_FORMAT_INFO,
&priv->format_info, sizeof (priv->format_info));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't query format info");
return FALSE;
}
auto session = std::make_unique < EncoderSessionData > ();
auto & desc = priv->encoder_desc;
desc = { };
desc.EncodeCodec = klass->codec;
desc.EncodeProfile = config.profile_desc;
desc.InputFormat = priv->format_info.Format;
desc.CodecConfiguration = config.codec_config;
desc.MaxMotionEstimationPrecision =
D3D12_VIDEO_ENCODER_MOTION_ESTIMATION_PRECISION_MODE_MAXIMUM;
hr = video_device->CreateVideoEncoder (&desc,
IID_PPV_ARGS (&session->encoder));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder");
return FALSE;
}
auto & heap_desc = priv->heap_desc;
heap_desc = { };
heap_desc.EncodeCodec = klass->codec;
heap_desc.EncodeProfile = config.profile_desc;
heap_desc.EncodeLevel = config.level;
heap_desc.ResolutionsListCount = 1;
heap_desc.pResolutionList = &config.resolution;
hr = video_device->CreateVideoEncoderHeap (&heap_desc,
IID_PPV_ARGS (&session->heap));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder heap");
return FALSE;
}
guint resolved_metadata_size;
resolved_metadata_size = sizeof (D3D12_VIDEO_ENCODER_OUTPUT_METADATA)
+ sizeof (D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA) *
config.max_subregions;
if (resource_req.EncoderMetadataBufferAccessAlignment > 1) {
resolved_metadata_size =
((resolved_metadata_size +
resource_req.EncoderMetadataBufferAccessAlignment - 1) /
resource_req.EncoderMetadataBufferAccessAlignment) *
resource_req.EncoderMetadataBufferAccessAlignment;
}
/* TODO: calculate bitstream buffer size */
guint bitstream_size = 1024 * 1024 * 8;
session->encoder_pool = gst_d3d12_encoder_buffer_pool_new (self->device,
resource_req.MaxEncoderOutputMetadataBufferSize,
resolved_metadata_size, bitstream_size, ASYNC_DEPTH);
session->upload_pool = gst_d3d12_encoder_create_upload_pool (self);
if (!session->upload_pool)
return FALSE;
priv->session = std::move (session);
return TRUE;
}
static GstBuffer *
gst_d3d12_encoder_upload_frame (GstD3D12Encoder * self, GstBuffer * buffer)
{
auto priv = self->priv;
const auto info = &priv->input_state->info;
GstBuffer *upload = nullptr;
gboolean d3d12_copy = FALSE;
auto mem = gst_buffer_peek_memory (buffer, 0);
if (gst_is_d3d12_memory (mem)) {
auto dmem = GST_D3D12_MEMORY_CAST (mem);
if (gst_d3d12_device_is_equal (dmem->device, self->device)) {
GstMapInfo map_info;
if (!gst_memory_map (mem, &map_info, GST_MAP_READ_D3D12)) {
GST_ERROR_OBJECT (self, "Couldn't map memory");
return nullptr;
}
gst_memory_unmap (mem, &map_info);
auto resource = gst_d3d12_memory_get_resource_handle (dmem);
auto desc = GetDesc (resource);
if (desc.Width >= (UINT64) priv->config.resolution.Width &&
desc.Height >= priv->config.resolution.Height) {
return gst_buffer_ref (buffer);
}
d3d12_copy = TRUE;
}
}
gst_buffer_pool_acquire_buffer (priv->session->upload_pool, &upload, nullptr);
if (!upload) {
GST_ERROR_OBJECT (self, "Couldn't acquire buffer");
return nullptr;
}
if (d3d12_copy) {
std::vector < GstD3D12CopyTextureRegionArgs > copy_args;
auto dmem = GST_D3D12_MEMORY_CAST (mem);
auto src_resource = gst_d3d12_memory_get_resource_handle (dmem);
ComPtr < ID3D12Fence > fence_to_wait;
guint64 fence_val_to_wait = 0;
gst_d3d12_memory_get_external_fence (dmem,
&fence_to_wait, &fence_val_to_wait);
dmem = (GstD3D12Memory *) gst_buffer_peek_memory (upload, 0);
auto dst_resource = gst_d3d12_memory_get_resource_handle (dmem);
D3D12_BOX src_box[2];
auto desc = GetDesc (src_resource);
UINT width = MIN ((UINT) desc.Width, priv->config.resolution.Width);
UINT height = MIN ((UINT) desc.Height, priv->config.resolution.Height);
for (guint i = 0; i < 2; i++) {
GstD3D12CopyTextureRegionArgs args;
memset (&args, 0, sizeof (args));
args.src = CD3DX12_TEXTURE_COPY_LOCATION (src_resource, i);
args.dst = CD3DX12_TEXTURE_COPY_LOCATION (dst_resource, i);
src_box[i].left = 0;
src_box[i].top = 0;
src_box[i].front = 0;
src_box[i].back = 1;
if (i == 0) {
src_box[i].right = width;
src_box[i].bottom = height;
} else {
src_box[i].right = width / 2;
src_box[i].bottom = height / 2;
}
args.src_box = &src_box[i];
copy_args.push_back (args);
}
guint64 fence_val = 0;
gst_d3d12_device_copy_texture_region (self->device, copy_args.size (),
copy_args.data (), nullptr, fence_to_wait.Get (), fence_val_to_wait,
D3D12_COMMAND_LIST_TYPE_DIRECT, &fence_val);
gst_d3d12_buffer_after_write (upload, fence_val);
} else {
GstVideoFrame src_frame, dst_frame;
if (!gst_video_frame_map (&src_frame, info, buffer, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Couldn't map frame");
gst_buffer_unref (upload);
return nullptr;
}
if (!gst_video_frame_map (&dst_frame, info, upload, GST_MAP_WRITE)) {
GST_ERROR_OBJECT (self, "Couldn't map frame");
gst_video_frame_unmap (&src_frame);
gst_buffer_unref (upload);
return nullptr;
}
for (guint i = 0; i < GST_VIDEO_FRAME_N_PLANES (&src_frame); i++) {
auto src_width_in_bytes = GST_VIDEO_FRAME_COMP_WIDTH (&src_frame, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (&src_frame, i);
auto src_height = GST_VIDEO_FRAME_COMP_HEIGHT (&src_frame, i);
auto src_stride = GST_VIDEO_FRAME_PLANE_STRIDE (&src_frame, i);
auto dst_width_in_bytes = GST_VIDEO_FRAME_COMP_WIDTH (&dst_frame, i) *
GST_VIDEO_FRAME_COMP_PSTRIDE (&dst_frame, i);
auto dst_height = GST_VIDEO_FRAME_COMP_HEIGHT (&dst_frame, i);
auto dst_stride = GST_VIDEO_FRAME_PLANE_STRIDE (&dst_frame, i);
auto width_in_bytes = MIN (src_width_in_bytes, dst_width_in_bytes);
auto height = MIN (src_height, dst_height);
auto src_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&src_frame, i);
auto dst_data = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&dst_frame, i);
for (gint j = 0; j < height; j++) {
memcpy (dst_data, src_data, width_in_bytes);
dst_data += dst_stride;
src_data += src_stride;
}
}
gst_video_frame_unmap (&dst_frame);
gst_video_frame_unmap (&src_frame);
GstMapInfo map_info;
mem = gst_buffer_peek_memory (upload, 0);
if (!gst_memory_map (mem, &map_info, GST_MAP_READ_D3D12)) {
GST_ERROR_OBJECT (self, "Couldn't map memory");
gst_buffer_unref (upload);
return nullptr;
}
gst_memory_unmap (mem, &map_info);
}
return upload;
}
static void
gst_d3d12_encoder_build_command (GstD3D12Encoder * self,
const D3D12_VIDEO_ENCODER_ENCODEFRAME_INPUT_ARGUMENTS * in_args,
const D3D12_VIDEO_ENCODER_ENCODEFRAME_OUTPUT_ARGUMENTS * out_args,
const D3D12_VIDEO_ENCODER_RESOLVE_METADATA_INPUT_ARGUMENTS * meta_in_args,
const D3D12_VIDEO_ENCODER_RESOLVE_METADATA_OUTPUT_ARGUMENTS * meta_out_args,
GstD3D12FenceData * fence_data,
ID3D12VideoEncodeCommandList2 * command_list)
{
auto priv = self->priv;
const auto & format_info = priv->format_info;
auto array_of_textures = priv->array_of_textures;
std::vector < D3D12_RESOURCE_BARRIER > pre_enc_barrier;
std::vector < D3D12_RESOURCE_BARRIER > post_enc_barrier;
pre_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (in_args->pInputFrame,
D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ));
post_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (in_args->pInputFrame,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ, D3D12_RESOURCE_STATE_COMMON));
/* Reference picture barriers */
if (in_args->PictureControlDesc.ReferenceFrames.NumTexture2Ds > 0) {
if (array_of_textures) {
for (UINT i = 0;
i < in_args->PictureControlDesc.ReferenceFrames.NumTexture2Ds; i++) {
auto ref_pic =
in_args->PictureControlDesc.ReferenceFrames.ppTexture2Ds[i];
ref_pic->AddRef ();
gst_d3d12_fence_data_add_notify_com (fence_data, ref_pic);
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ,
D3D12_RESOURCE_STATE_COMMON));
}
} else {
auto ref_pic =
in_args->PictureControlDesc.ReferenceFrames.ppTexture2Ds[0];
ref_pic->AddRef ();
gst_d3d12_fence_data_add_notify_com (fence_data, ref_pic);
auto ref_pic_desc = GetDesc (ref_pic);
for (UINT i = 0;
i < in_args->PictureControlDesc.ReferenceFrames.NumTexture2Ds; i++) {
UINT mip_slice, plane_slice, array_slice;
D3D12DecomposeSubresource (in_args->PictureControlDesc.
ReferenceFrames.pSubresources[i], ref_pic_desc.MipLevels,
ref_pic_desc.DepthOrArraySize, mip_slice, array_slice, plane_slice);
for (UINT plane = 0; plane < format_info.PlaneCount; plane++) {
UINT subresource = D3D12CalcSubresource (mip_slice, array_slice,
plane, ref_pic_desc.MipLevels,
ref_pic_desc.DepthOrArraySize);
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ, subresource));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (ref_pic, D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ,
D3D12_RESOURCE_STATE_COMMON, subresource));
}
}
}
}
/* Reconstructed picture barries */
if (out_args->ReconstructedPicture.pReconstructedPicture) {
out_args->ReconstructedPicture.pReconstructedPicture->AddRef ();
gst_d3d12_fence_data_add_notify_com (fence_data,
out_args->ReconstructedPicture.pReconstructedPicture);
if (array_of_textures) {
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
} else {
auto recon_pic_desc =
GetDesc (out_args->ReconstructedPicture.pReconstructedPicture);
UINT mip_slice, plane_slice, array_slice;
D3D12DecomposeSubresource (out_args->
ReconstructedPicture.ReconstructedPictureSubresource,
recon_pic_desc.MipLevels, recon_pic_desc.DepthOrArraySize, mip_slice,
array_slice, plane_slice);
for (UINT plane = 0; plane < format_info.PlaneCount; plane++) {
UINT subresource = D3D12CalcSubresource (mip_slice, array_slice,
plane, recon_pic_desc.MipLevels,
recon_pic_desc.DepthOrArraySize);
pre_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE, subresource));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->ReconstructedPicture.pReconstructedPicture,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON, subresource));
}
}
}
pre_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (out_args->Bitstream.
pBuffer, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
pre_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->EncoderOutputMetadata.pBuffer,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
command_list->ResourceBarrier (pre_enc_barrier.size (),
pre_enc_barrier.data ());
auto encoder = priv->session->encoder;
auto heap = priv->session->heap;
command_list->EncodeFrame (encoder.Get (), heap.Get (), in_args, out_args);
gst_d3d12_fence_data_add_notify_com (fence_data, encoder.Detach ());
gst_d3d12_fence_data_add_notify_com (fence_data, heap.Detach ());
post_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::Transition (out_args->Bitstream.
pBuffer, D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
post_enc_barrier.
push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->EncoderOutputMetadata.pBuffer,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ));
post_enc_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (meta_out_args->ResolvedLayoutMetadata.pBuffer,
D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE));
command_list->ResourceBarrier (post_enc_barrier.size (),
post_enc_barrier.data ());
command_list->ResolveEncoderOutputMetadata (meta_in_args, meta_out_args);
std::vector < D3D12_RESOURCE_BARRIER > post_resolve_barrier;
post_resolve_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (out_args->EncoderOutputMetadata.pBuffer,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_READ, D3D12_RESOURCE_STATE_COMMON));
post_resolve_barrier.push_back (CD3DX12_RESOURCE_BARRIER::
Transition (meta_out_args->ResolvedLayoutMetadata.pBuffer,
D3D12_RESOURCE_STATE_VIDEO_ENCODE_WRITE,
D3D12_RESOURCE_STATE_COMMON));
command_list->ResourceBarrier (post_resolve_barrier.size (),
post_resolve_barrier.data ());
}
static gboolean
gst_d3d12_encoder_resolve_bitstream (GstD3D12Encoder * self,
ID3D12Resource * resolved_metadata, ID3D12Resource * bitstream,
GstBuffer * output)
{
auto priv = self->priv;
guint8 *map_data;
HRESULT hr;
g_assert (output);
CD3DX12_RANGE zero_range (0, 0);
hr = resolved_metadata->Map (0, nullptr, (void **) &map_data);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't map metadata");
return FALSE;
}
D3D12_VIDEO_ENCODER_OUTPUT_METADATA output_meta =
*((D3D12_VIDEO_ENCODER_OUTPUT_METADATA *) map_data);
GST_TRACE_OBJECT (self,
"EncodeErrorFlags: %" G_GUINT64_FORMAT ", "
"EncodeStats.AverageQP: %" G_GUINT64_FORMAT ", "
"EncodeStats.IntraCodingUnitsCount: %" G_GUINT64_FORMAT ", "
"EncodeStats.InterCodingUnitsCount: %" G_GUINT64_FORMAT ", "
"EncodeStats.SkipCodingUnitsCount: %" G_GUINT64_FORMAT ", "
"EncodeStats.AverageMotionEstimationXDirection: %" G_GUINT64_FORMAT ", "
"EncodeStats.AverageMotionEstimationYDirection: %" G_GUINT64_FORMAT ", "
"EncodedBitstreamWrittenBytesCount: %" G_GUINT64_FORMAT ", "
"WrittenSubregionsCount: %" G_GUINT64_FORMAT,
output_meta.EncodeErrorFlags,
output_meta.EncodeStats.AverageQP,
output_meta.EncodeStats.IntraCodingUnitsCount,
output_meta.EncodeStats.InterCodingUnitsCount,
output_meta.EncodeStats.SkipCodingUnitsCount,
output_meta.EncodeStats.AverageMotionEstimationXDirection,
output_meta.EncodeStats.AverageMotionEstimationYDirection,
output_meta.EncodedBitstreamWrittenBytesCount,
output_meta.WrittenSubregionsCount);
if (output_meta.WrittenSubregionsCount == 0 ||
output_meta.EncodedBitstreamWrittenBytesCount == 0) {
GST_ERROR_OBJECT (self, "No written data");
resolved_metadata->Unmap (0, &zero_range);
return FALSE;
}
if (output_meta.EncodeErrorFlags !=
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_NO_ERROR) {
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_CODEC_PICTURE_CONTROL_NOT_SUPPORTED)
!= 0) {
GST_ERROR_OBJECT (self, "Picture control not supported");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_SUBREGION_LAYOUT_CONFIGURATION_NOT_SUPPORTED)
!= 0) {
GST_ERROR_OBJECT (self, "Subregion layout not supported");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_INVALID_REFERENCE_PICTURES) !=
0) {
GST_ERROR_OBJECT (self, "Invalid reference picture");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_RECONFIGURATION_REQUEST_NOT_SUPPORTED)
!= 0) {
GST_ERROR_OBJECT (self, "Reconfigure not supported");
}
if ((output_meta.EncodeErrorFlags &
D3D12_VIDEO_ENCODER_ENCODE_ERROR_FLAG_INVALID_METADATA_BUFFER_SOURCE)
!= 0) {
GST_ERROR_OBJECT (self, "Invalid metadata buffer source");
}
resolved_metadata->Unmap (0, &zero_range);
return FALSE;
}
map_data += sizeof (D3D12_VIDEO_ENCODER_OUTPUT_METADATA);
priv->subregions.clear ();
UINT64 total_subregion_size = 0;
for (guint i = 0; i < output_meta.WrittenSubregionsCount; i++) {
auto subregion =
*((D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA *) map_data);
GST_TRACE_OBJECT (self, "Subregion %d, bSize: %" G_GUINT64_FORMAT ", "
"bStartOffset: %" G_GUINT64_FORMAT ", bHeaderSize: %" G_GUINT64_FORMAT,
i, subregion.bSize, subregion.bStartOffset, subregion.bHeaderSize);
subregion.bStartOffset += total_subregion_size;
priv->subregions.push_back (subregion);
total_subregion_size += subregion.bSize;
map_data += sizeof (D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA);
}
resolved_metadata->Unmap (0, &zero_range);
hr = bitstream->Map (0, nullptr, (void **) &map_data);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't map bitstream");
return FALSE;
}
auto mem = gst_allocator_alloc (nullptr, total_subregion_size, nullptr);
GstMapInfo map_info;
gst_memory_map (mem, &map_info, GST_MAP_WRITE);
auto data = (guint8 *) map_info.data;
for (size_t i = 0; i < priv->subregions.size (); i++) {
const auto & subregion = priv->subregions[i];
memcpy (data, map_data + subregion.bStartOffset, subregion.bSize);
data += subregion.bSize;
}
gst_memory_unmap (mem, &map_info);
bitstream->Unmap (0, &zero_range);
gst_buffer_append_memory (output, mem);
return TRUE;
}
static gpointer
gst_d3d12_encoder_output_loop (GstD3D12Encoder * self)
{
auto priv = self->priv;
auto encoder = GST_VIDEO_ENCODER (self);
GST_DEBUG_OBJECT (self, "Entering output thread");
HANDLE event_handle = CreateEventEx (nullptr, nullptr, 0, EVENT_ALL_ACCESS);
while (true) {
EncoderOutputData output_data;
{
GST_LOG_OBJECT (self, "Waiting for output data");
std::unique_lock < std::mutex > lk (priv->session->queue_lock);
while (gst_queue_array_is_empty (priv->session->output_queue))
priv->session->queue_cond.wait (lk);
output_data = *((EncoderOutputData *)
gst_queue_array_pop_head_struct (priv->session->output_queue));
}
if (!output_data.frame) {
GST_DEBUG_OBJECT (self, "Got terminate data");
break;
}
GST_LOG_OBJECT (self, "Processing output %" G_GUINT64_FORMAT,
output_data.fence_val);
gst_d3d12_command_queue_fence_wait (priv->cmd->queue, output_data.fence_val,
event_handle);
if (priv->flushing) {
GST_DEBUG_OBJECT (self, "We are flushing");
gst_d3d12_encoder_buffer_unref (output_data.buffer);
gst_clear_buffer (&output_data.frame->output_buffer);
gst_video_encoder_finish_frame (encoder, output_data.frame);
} else if (priv->last_flow == GST_FLOW_OK) {
ComPtr < ID3D12Resource > resolved_metadata;
ComPtr < ID3D12Resource > bitstream;
gst_d3d12_encoder_buffer_get_resolved_metadata (output_data.buffer,
&resolved_metadata);
gst_d3d12_encoder_buffer_get_bitstream (output_data.buffer, &bitstream);
auto frame = output_data.frame;
if (!frame->output_buffer)
frame->output_buffer = gst_buffer_new ();
auto resolve_ret = gst_d3d12_encoder_resolve_bitstream (self,
resolved_metadata.Get (),
bitstream.Get (), frame->output_buffer);
gst_d3d12_encoder_buffer_unref (output_data.buffer);
if (!resolve_ret) {
GST_ERROR_OBJECT (self, "Couldn't resolve bitstream buffer");
priv->last_flow = GST_FLOW_ERROR;
gst_clear_buffer (&frame->output_buffer);
gst_video_encoder_finish_frame (encoder, frame);
} else {
/* TODO: calculate dts in case of bframe is used */
frame->dts = frame->pts;
priv->last_flow = gst_video_encoder_finish_frame (encoder, frame);
if (priv->last_flow != GST_FLOW_OK) {
GST_WARNING_OBJECT (self, "Last flow was %s",
gst_flow_get_name (priv->last_flow));
}
}
} else {
GST_DEBUG_OBJECT (self, "Dropping framem last flow return was %s",
gst_flow_get_name (priv->last_flow));
gst_d3d12_encoder_buffer_unref (output_data.buffer);
gst_clear_buffer (&output_data.frame->output_buffer);
gst_video_encoder_finish_frame (encoder, output_data.frame);
}
}
GST_DEBUG_OBJECT (self, "Leaving output thread");
CloseHandle (event_handle);
return nullptr;
}
static GstFlowReturn
gst_d3d12_encoder_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
auto & config = priv->config;
auto klass = GST_D3D12_ENCODER_GET_CLASS (self);
if (!priv->session) {
GST_ERROR_OBJECT (self, "Encoding session is not configured");
return GST_FLOW_ERROR;
}
if (!priv->session->encoder || !priv->session->heap) {
GST_ERROR_OBJECT (self, "Previous reconfigure failed");
return GST_FLOW_ERROR;
}
if (priv->last_flow != GST_FLOW_OK) {
GST_WARNING_OBJECT (self, "Last flow was %s",
gst_flow_get_name (priv->last_flow));
gst_video_encoder_finish_frame (encoder, frame);
return priv->last_flow;
}
auto upload = gst_d3d12_encoder_upload_frame (self, frame->input_buffer);
if (!upload) {
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
GstD3D12FenceData *fence_data;
gst_d3d12_fence_data_pool_acquire (priv->fence_data_pool, &fence_data);
gst_d3d12_fence_data_add_notify_mini_object (fence_data, upload);
GstD3D12CommandAllocator *gst_ca;
if (!gst_d3d12_command_allocator_pool_acquire (priv->cmd->ca_pool, &gst_ca)) {
GST_ERROR_OBJECT (self, "Couldn't acquire command allocator");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
gst_d3d12_fence_data_add_notify_mini_object (fence_data, gst_ca);
auto ca = gst_d3d12_command_allocator_get_handle (gst_ca);
auto hr = ca->Reset ();
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't reset command allocator");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
if (!priv->cmd->cl) {
auto device = gst_d3d12_device_get_device_handle (self->device);
hr = device->CreateCommandList (0, D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE,
ca, nullptr, IID_PPV_ARGS (&priv->cmd->cl));
} else {
hr = priv->cmd->cl->Reset (ca);
}
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't reset command list");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
auto video_device = priv->cmd->video_device.Get ();
D3D12_VIDEO_ENCODER_ENCODEFRAME_INPUT_ARGUMENTS in_args = { };
D3D12_VIDEO_ENCODER_ENCODEFRAME_OUTPUT_ARGUMENTS out_args = { };
D3D12_VIDEO_ENCODER_RESOLVE_METADATA_INPUT_ARGUMENTS meta_in_args = { };
D3D12_VIDEO_ENCODER_RESOLVE_METADATA_OUTPUT_ARGUMENTS meta_out_args = { };
auto prev_max_subregions = config.max_subregions;
gboolean need_new_session = FALSE;
if (!klass->start_frame (self, video_device, frame,
&in_args.SequenceControlDesc,
&in_args.PictureControlDesc, &out_args.ReconstructedPicture, &config,
&need_new_session)) {
GST_ERROR_OBJECT (self, "Start frame failed");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
if (need_new_session) {
GST_DEBUG_OBJECT (self, "Need new encoding session");
in_args.SequenceControlDesc.Flags =
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_NONE;
priv->session->encoder = nullptr;
priv->session->heap = nullptr;
auto & desc = priv->encoder_desc;
desc.EncodeCodec = klass->codec;
desc.EncodeProfile = config.profile_desc;
desc.InputFormat = priv->format_info.Format;
desc.CodecConfiguration = config.codec_config;
desc.MaxMotionEstimationPrecision =
D3D12_VIDEO_ENCODER_MOTION_ESTIMATION_PRECISION_MODE_MAXIMUM;
hr = video_device->CreateVideoEncoder (&desc,
IID_PPV_ARGS (&priv->session->encoder));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
auto & heap_desc = priv->heap_desc;
heap_desc.EncodeCodec = klass->codec;
heap_desc.EncodeProfile = config.profile_desc;
heap_desc.EncodeLevel = config.level;
heap_desc.ResolutionsListCount = 1;
heap_desc.pResolutionList = &config.resolution;
hr = video_device->CreateVideoEncoderHeap (&heap_desc,
IID_PPV_ARGS (&priv->session->heap));
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't create encoder heap");
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
}
if (prev_max_subregions != config.max_subregions) {
gst_clear_object (&priv->session->encoder_pool);
const auto & resource_req = priv->resource_req;
GST_DEBUG_OBJECT (self, "Subregion count changed %d -> %d",
prev_max_subregions, config.max_subregions);
guint resolved_metadata_size;
resolved_metadata_size = sizeof (D3D12_VIDEO_ENCODER_OUTPUT_METADATA)
+ sizeof (D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA) *
config.max_subregions;
if (priv->resource_req.EncoderMetadataBufferAccessAlignment > 1) {
resolved_metadata_size =
((resolved_metadata_size +
resource_req.EncoderMetadataBufferAccessAlignment - 1) /
resource_req.EncoderMetadataBufferAccessAlignment) *
resource_req.EncoderMetadataBufferAccessAlignment;
}
/* TODO: calculate bitstream buffer size */
guint bitstream_size = 1024 * 1024 * 8;
priv->session->encoder_pool =
gst_d3d12_encoder_buffer_pool_new (self->device,
resource_req.MaxEncoderOutputMetadataBufferSize,
resolved_metadata_size, bitstream_size, ASYNC_DEPTH);
}
GstD3D12EncoderBuffer *encoder_buf;
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
if (!gst_d3d12_encoder_buffer_pool_acquire (priv->session->encoder_pool,
&encoder_buf)) {
GST_ERROR_OBJECT (self, "Couldn't acquire bitstream buffer");
GST_VIDEO_ENCODER_STREAM_LOCK (self);
klass->end_frame (self);
gst_clear_buffer (&frame->output_buffer);
gst_d3d12_fence_data_unref (fence_data);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
GST_VIDEO_ENCODER_STREAM_LOCK (self);
gst_d3d12_fence_data_add_notify_mini_object (fence_data, encoder_buf);
ComPtr < ID3D12Resource > metadata;
ComPtr < ID3D12Resource > resolved_metadata;
ComPtr < ID3D12Resource > bitstream;
gst_d3d12_encoder_buffer_get_metadata (encoder_buf, &metadata);
gst_d3d12_encoder_buffer_get_resolved_metadata (encoder_buf,
&resolved_metadata);
gst_d3d12_encoder_buffer_get_bitstream (encoder_buf, &bitstream);
auto mem = (GstD3D12Memory *) gst_buffer_peek_memory (upload, 0);
auto resource = gst_d3d12_memory_get_resource_handle (mem);
in_args.pInputFrame = resource;
in_args.InputFrameSubresource = 0;
in_args.CurrentFrameBitstreamMetadataSize = 0;
out_args.Bitstream.pBuffer = bitstream.Get ();
out_args.Bitstream.FrameStartOffset = 0;
out_args.EncoderOutputMetadata.pBuffer = metadata.Get ();
out_args.EncoderOutputMetadata.Offset = 0;
meta_in_args.EncoderCodec = klass->codec;
meta_in_args.EncoderProfile = config.profile_desc;
meta_in_args.EncoderInputFormat = DXGI_FORMAT_NV12;
meta_in_args.EncodedPictureEffectiveResolution = config.resolution;
meta_in_args.HWLayoutMetadata.pBuffer = metadata.Get ();
meta_in_args.HWLayoutMetadata.Offset = 0;
meta_out_args.ResolvedLayoutMetadata.pBuffer = resolved_metadata.Get ();
meta_out_args.ResolvedLayoutMetadata.Offset = 0;
auto cl = priv->cmd->cl;
gst_d3d12_encoder_build_command (self, &in_args, &out_args, &meta_in_args,
&meta_out_args, fence_data, cl.Get ());
hr = cl->Close ();
klass->end_frame (self);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't close command list");
gst_d3d12_fence_data_unref (fence_data);
gst_clear_buffer (&frame->output_buffer);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
ComPtr < ID3D12Fence > fence_to_wait;
guint64 fence_val_to_wait = 0;
if (gst_d3d12_memory_get_external_fence (mem,
&fence_to_wait, &fence_val_to_wait)) {
gst_d3d12_command_queue_execute_wait (priv->cmd->queue,
fence_to_wait.Get (), fence_val_to_wait);
}
auto completed = gst_d3d12_device_get_completed_value (self->device,
D3D12_COMMAND_LIST_TYPE_DIRECT);
if (completed < mem->fence_value) {
auto queue = gst_d3d12_device_get_command_queue (self->device,
D3D12_COMMAND_LIST_TYPE_DIRECT);
auto fence = gst_d3d12_command_queue_get_fence_handle (queue);
gst_d3d12_command_queue_execute_wait (priv->cmd->queue, fence,
mem->fence_value);
}
ID3D12CommandList *cmd_list[] = { cl.Get () };
hr = gst_d3d12_command_queue_execute_command_lists (priv->cmd->queue,
1, cmd_list, &priv->cmd->fence_val);
if (!gst_d3d12_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Couldn't execute command list");
gst_d3d12_fence_data_unref (fence_data);
gst_clear_buffer (&frame->output_buffer);
gst_video_encoder_finish_frame (encoder, frame);
return GST_FLOW_ERROR;
}
gst_d3d12_command_queue_set_notify (priv->cmd->queue, priv->cmd->fence_val,
fence_data, (GDestroyNotify) gst_d3d12_fence_data_unref);
auto output_data = EncoderOutputData ();
output_data.frame = frame;
output_data.buffer = gst_d3d12_encoder_buffer_ref (encoder_buf);
output_data.fence_val = priv->cmd->fence_val;
GST_LOG_OBJECT (self, "Enqueue data %" G_GUINT64_FORMAT,
priv->cmd->fence_val);
GST_VIDEO_ENCODER_STREAM_UNLOCK (self);
{
std::lock_guard < std::mutex > lk (priv->session->queue_lock);
gst_queue_array_push_tail_struct (priv->session->output_queue,
&output_data);
priv->session->queue_cond.notify_one ();
}
GST_VIDEO_ENCODER_STREAM_LOCK (self);
if (!priv->output_thread) {
GST_DEBUG_OBJECT (self, "Spawning output thread");
priv->output_thread = g_thread_new ("GstD3D12H264EncLoop",
(GThreadFunc) gst_d3d12_encoder_output_loop, self);
}
return priv->last_flow;
}
static GstFlowReturn
gst_d3d12_encoder_finish (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
GST_DEBUG_OBJECT (self, "Finish");
gst_d3d12_encoder_drain (self, TRUE);
return GST_FLOW_OK;
}
static gboolean
gst_d3d12_encoder_flush (GstVideoEncoder * encoder)
{
auto self = GST_D3D12_ENCODER (encoder);
auto priv = self->priv;
GST_DEBUG_OBJECT (self, "Finish");
priv->flushing = true;
gst_d3d12_encoder_drain (self, TRUE);
priv->flushing = false;
priv->last_flow = GST_FLOW_OK;
return GST_FLOW_OK;
}
GType
gst_d3d12_encoder_rate_control_get_type (void)
{
static GType type = 0;
static const GEnumValue methods[] = {
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CQP, "Constant QP", "cqp"},
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CBR, "Constant bitrate", "cbr"},
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_VBR, "Variable bitrate", "vbr"},
{D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_QVBR,
"Constant quality variable bitrate", "qvbr"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12EncoderRateControl", methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_rate_control_support_get_type (void)
{
static GType type = 0;
static const GFlagsValue methods[] = {
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CQP), "Constant QP", "cqp"},
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_CBR), "Constant bitrate",
"cbr"},
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_VBR), "Variable bitrate",
"vbr"},
{(1 << D3D12_VIDEO_ENCODER_RATE_CONTROL_MODE_QVBR),
"Constant quality variable bitrate", "qvbr"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_flags_register_static ("GstD3D12EncoderRateControlSupport",
methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_subregion_layout_get_type (void)
{
static GType type = 0;
static const GEnumValue methods[] = {
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_FULL_FRAME,
"Full frame without partitioning", "full"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_BYTES_PER_SUBREGION,
"Bytes per subregion", "bytes"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_SQUARE_UNITS_PER_SUBREGION_ROW_UNALIGNED,
"Coding units (e.g., macroblock) per subregion", "coding-units"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_ROWS_PER_SUBREGION,
"Uniform rows per subregion", "rows"},
{D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_SUBREGIONS_PER_FRAME,
"Uniform subregions per frame", "subregions"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12EncoderSubregionLayout", methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_subregion_layout_support_get_type (void)
{
static GType type = 0;
static const GFlagsValue methods[] = {
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_FULL_FRAME),
"Full frame without partitioning", "full"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_BYTES_PER_SUBREGION),
"Bytes per subregion", "bytes"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_SQUARE_UNITS_PER_SUBREGION_ROW_UNALIGNED),
"Coding units (e.g., macroblock) per subregion", "coding-units"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_ROWS_PER_SUBREGION),
"Uniform rows (in coding-unit) per subregion", "rows"},
{(1 << D3D12_VIDEO_ENCODER_FRAME_SUBREGION_LAYOUT_MODE_UNIFORM_PARTITIONING_SUBREGIONS_PER_FRAME),
"Uniform subregions per frame", "subregions"},
{0, nullptr, nullptr},
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_flags_register_static ("GstD3D12EncoderSubregionLayoutSupport",
methods);
} GST_D3D12_CALL_ONCE_END;
return type;
}
GType
gst_d3d12_encoder_sei_insert_mode_get_type (void)
{
static GType type = 0;
static const GEnumValue modes[] = {
{GST_D3D12_ENCODER_SEI_INSERT, "Insert", "insert"},
{GST_D3D12_ENCODER_SEI_INSERT_AND_DROP, "Insert and drop",
"insert-and-drop"},
{GST_D3D12_ENCODER_SEI_DISABLED, "Disabled", "disabled"},
{0, nullptr, nullptr}
};
GST_D3D12_CALL_ONCE_BEGIN {
type = g_enum_register_static ("GstD3D12EncoderSeiInsertMode", modes);
} GST_D3D12_CALL_ONCE_END;
return type;
}
gboolean
gst_d3d12_encoder_check_needs_new_session (D3D12_VIDEO_ENCODER_SUPPORT_FLAGS
support_flags, D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAGS seq_flags)
{
bool rc_updated = (seq_flags &
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_RATE_CONTROL_CHANGE) != 0;
bool can_rc_update = CHECK_SUPPORT_FLAG (support_flags,
RATE_CONTROL_RECONFIGURATION_AVAILABLE);
if (rc_updated && !can_rc_update)
return TRUE;
bool layout_updated = (seq_flags &
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_SUBREGION_LAYOUT_CHANGE) != 0;
bool can_layout_update = CHECK_SUPPORT_FLAG (support_flags,
SUBREGION_LAYOUT_RECONFIGURATION_AVAILABLE);
if (layout_updated && !can_layout_update)
return TRUE;
bool gop_updated = (seq_flags &
D3D12_VIDEO_ENCODER_SEQUENCE_CONTROL_FLAG_GOP_SEQUENCE_CHANGE) != 0;
bool can_gop_update = CHECK_SUPPORT_FLAG (support_flags,
SEQUENCE_GOP_RECONFIGURATION_AVAILABLE);
if (gop_updated && !can_gop_update)
return TRUE;
return FALSE;
}
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